Class: Opal::Rewriters::BinaryOperatorAssignment
- Inherits:
-
Base
- Object
- Parser::AST::Processor
- Base
- Opal::Rewriters::BinaryOperatorAssignment
- Defined in:
- opal/lib/opal/rewriters/binary_operator_assignment.rb
Direct Known Subclasses
Defined Under Namespace
Classes: ConditionalSendHandler, SendHandler
Constant Summary collapse
- GET_SET =
->(get_type, set_type) { ->(node, lhs, operation, rhs) { get_node = lhs.updated(get_type) # lhs set_node = node.updated(:send, [get_node, operation, rhs]) # lhs + rhs lhs.updated(set_type, [*lhs, set_node]) # lhs = lhs + rhs } }
- LocalVariableHandler =
Takes
lhs += rhs
Produceslhs = lhs + rhs
- InstanceVariableHandler =
Takes
@lhs += rhs
Produces@lhs = @lhs + rhs
- ConstantHandler =
Takes
LHS += rhs
ProducesLHS = LHS + rhs
- GlobalVariableHandler =
Takes
$lhs += rhs
Produces$lhs = $lhs + rhs
- ClassVariableHandler =
Takes
@@lhs += rhs
Produces@@lhs = @@lhs + rhs
- HANDLERS =
{ lvasgn: LocalVariableHandler, ivasgn: InstanceVariableHandler, casgn: ConstantHandler, gvasgn: GlobalVariableHandler, cvasgn: ClassVariableHandler, send: SendHandler, csend: ConditionalSendHandler }.freeze
- ASSIGNMENT_STRING_NODE =
s(:str, 'assignment')
Constants inherited from Base
Opal::Rewriters::Base::DUMMY_LOCATION
Instance Attribute Summary
Attributes inherited from Base
Class Method Summary collapse
Instance Method Summary collapse
-
#on_defined?(node) ⇒ Boolean
Rewrites any or_asgn and and_asgn node like
defined?(a ||= 1)
anddefined?(a &&= 1)
to a static "assignment" string node. -
#on_op_asgn(node) ⇒ Object
lhs += rhs.
Methods inherited from Base
#append_to_body, #begin_with_stmts, #dynamic!, #error, #on_top, #prepend_to_body, #process, s, #s, #stmts_of
Class Method Details
.new_temp ⇒ Object
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# File 'opal/lib/opal/rewriters/binary_operator_assignment.rb', line 12 def self.new_temp @@counter ||= 0 @@counter += 1 :"$binary_op_recvr_tmp_#{@@counter}" end |
.reset_tmp_counter! ⇒ Object
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# File 'opal/lib/opal/rewriters/binary_operator_assignment.rb', line 8 def self.reset_tmp_counter! @@counter = 0 end |
Instance Method Details
#on_defined?(node) ⇒ Boolean
Rewrites any or_asgn and and_asgn node like
defined?(a ||= 1)
and
defined?(a &&= 1)
to a static "assignment" string node
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# File 'opal/lib/opal/rewriters/binary_operator_assignment.rb', line 131 def on_defined?(node) inner, _ = *node if inner.type == :op_asgn ASSIGNMENT_STRING_NODE else super(node) end end |
#on_op_asgn(node) ⇒ Object
lhs += rhs
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# File 'opal/lib/opal/rewriters/binary_operator_assignment.rb', line 114 def on_op_asgn(node) lhs, op, rhs = *node result = HANDLERS .fetch(lhs.type) { error "cannot handle LHS type: #{lhs.type}" } .call(node, lhs, op, rhs) process(result) end |